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Finding the Fourth Proportional to 118,520.75, 177,781.14 and 35,414.75

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Solution

The fourth proportional to 118,520.75, 177,781.14 and 35,414.75 is: 53,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.75 : 177,781.14 = 35,414.75 : x
  2. Step 2: Convert to fraction form
    118,520.75/177,781.14 = 35,414.75/x
  3. Step 3: Cross multiply
    118,520.75x = 177,781.14 × 35,414.75
  4. Step 4: Simplify right side
    118,520.75x = 6,296,074,627.82
  5. Step 5: Solve for x
    x = 6,296,074,627.82/118,520.75
  6. Step 6: Final answer
    x = 53,122.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.